Observation of Magnetocoriolis Waves in a Liquid Metal Taylor-Couette Experiment

[摘要] The first observation of fast and slow magnetocoriolis (MC) waves in a laboratory experiment is reported. Rotating nonaxisymmetric modes arising from a magnetized turbulent Taylor-Couette flow of liquid metal are identified as the fast and slow MC waves by the dependence of the rotation frequency on the applied field strength. The observed slow MC wave is marginally damped but will become destabilized by the magnetorotational instability with a modest increase in rotation rate.

[发布日期] 2009-09-14

[学科分类] 原子、分子光学和等离子物理

[关键词] INSTABILITY;LIQUID METALS;ROTATION MHD;Rotating Plasmas